15360+3948 STT 298AB

 
 
15H 36M 02.22S +39 48' 08.9" P.A. 187 SEP 1.21 MAG 7.16,8.44 SP K2V DIST. 22.31 PC (72.78 L.Y.)
 
 
Coord 2000
15360+3948
Discov num
STT 298
Comp
AB
Coord arcsec 2000
15 36 02.22 +39 48 08.9
Date first
1843
Date last
2015
Obs
537
Pa first
179
Pa last
186
P.A. Now (θ)
187°
Sep first
1.1
Sep last
1.1
Sep. Now (ρ)
1.21"
Mag pri
7.16
Mag sec
8.44
delta mag (ΔM)
1.28
Spectral class
K2V (yellow-orange)
Pri motion ra
-483
Sec motion ra
-455
Pri motion dec
+028
Sec motion dec
+051
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
15360+3948 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 64800 15360+3948 STT 298 AB 1843 2015 537 187 1.2 7.16 8.44 1.28 Y <===
Show 64800 15360+3948 STT 298 AB,C 1867 2013 42 328 121.6 6.90 7.75 0.85
Show 64800 15360+3948 STT 298 AB,D 1886 2002 6 224 167.4 6.90 13.94 7.04
Show 64800 15360+3948 STT 298 AB,E 1934 2002 5 335 456.0 6.90 12.07 5.17
Show 64799 15360+3948 STT 298 CE 1934 1999 4 337 335.8 7.75 12.07 4.32
Quintuple system
6 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Bootes
SAO
64800
HIP
76382
Tycho2
3053-00798-1
HD
139341
ADS
9716
GL
Gl 593A
BD
BD+40 2905
Distance
22.31
Distance ly
72.78
last precise pa
185.7
last precise sep
1.12
 
 
ORBITAL ELEMENTS
 
 
Period (P)55.6y Periastron (T)1993.99y Semi-major axis (a)0.794a
Eccentricity (e)0.59 Inclination (i)63° Longitude of periastron (ω)23°
Node (Ω) Note Grade1(1=Definitive, 9=Indet.)
Equinox2000 Last observation
label rho theta
2000 0.480 153.2
2001 0.570 158.7
2002 0.654 162.7
2003 0.731 165.8
2004 0.801 168.3
2005 0.864 170.5
2006 0.921 172.4
2007 0.971 174.1
2008 1.017 175.6
2009 1.056 177.0
2010 1.091 178.3
2011 1.121 179.5
2012 1.146 180.6
2013 1.167 181.8
2014 1.184 182.8
2015 1.197 183.9
2016 1.205 184.9
2017 1.210 186.0
2018 1.211 187.0
2019 1.209 188.0
2020 1.203 189.0
2021 1.193 190.1
2022 1.180 191.1
2023 1.164 192.2
2024 1.145 193.3
2025 1.122 194.5
2026 1.096 195.7
2027 1.067 197.0
2028 1.035 198.4
2029 1.000 199.8
2030 0.961 201.4

Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.

grafico orbita





grafico misure orbit6
Measures: green=micrometric, blue=interferometric, purple=photographic